<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>{subject}</title>
    <style>
        body {
            font-family: Arial, sans-serif;
            line-height: 1.6;
            color: #333;
            margin: 0;
            padding: 0;
        }
        .container {
            max-width: 600px;
            margin: 0 auto;
            padding: 20px;
        }
        .content {
            background-color: #f9f9f9;
            padding: 20px;
            border-radius: 5px;
        }
        .verification-code {
            font-size: 24px;
            font-weight: bold;
            text-align: center;
            padding: 10px;
            background-color: #e0e0e0;
            border-radius: 5px;
            margin: 20px 0;
        }
        .footer {
            text-align: center;
            margin-top: 20px;
            font-size: 12px;
            color: #666;
        }
        @media only screen and (max-width: 600px) {
            .container {
                width: 100%;
            }
        }
    </style>
</head>
<body>
    <div class="container">
        <div class="content">
            <p>尊敬的用户：</p>
            <p>您的验证码为：</p>
            <div class="verification-code">{code}</div>
            <p>请输入此验证码以完成验证流程。此验证码将在{time}分钟后过期。</p>
            <p>如果您未曾请求此验证码，请忽略此邮件。</p>
        </div>
        <div class="footer">
            <p>这是自动发送的消息，请勿回复此邮件。</p>
        </div>
    </div>
</body>
</html>